The Eclipse VIATRA framework supports the development of model transformations with specific focus on event-driven, reactive transformations. Building upon the incremental query support, VIATRA offers a language to define transformations and a reactive transformation engine to execute certain transformations upon changes in the underlying model.
The AMW (ATLAS Model Weaver) is a tool for establishing relationships (i.e., links) between models. The links are stored in a model, called weaving model. It is created conforming to a weaving metamodel. AMW provides a base weaving metamodel enabling to create links between model elements and associations between links. The metamodel may be extended to add other mapping semantics. This way there is the possibility of creating variable mapping languages dedicated to specific application requirements.